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Multi-Way Conventional loudspeakers with crossovers

Is it possible to cover the whole spectrum, high spl, low distortion with a 2-way?
Is it possible to cover the whole spectrum, high spl, low distortion with a 2-way?
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Old 17th July 2019, 06:31 AM   #1361
phase_accurate is offline phase_accurate
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The HF204 is basically a HF144 with an adaptor. If you don't need a 2" you can as well use a HF144.
The B&C prototype elliptical horn shown in the B&C coax thread would probably be nice for the HF1440 as well. But I guess if there is no need to cross below, say 700 Hz, an LTH142 would probably also be nice.

Regards

Charles
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Old 17th July 2019, 09:16 AM   #1362
4real is offline 4real  Netherlands
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Quote:
Originally Posted by docali View Post
The LTH142 is the smoothest but the Selenium is the best of all. It has the least beaming and by far the best low frequency extension and a first listening was very promising. This opens up the possibility for a much lower cross-over point.
How fair is it to compare these horns with vastly differing coverage? Obviously the Selenium has the least relative beaming, it's only a 40x20 horn compared to the 60x40 of the XT1464. Depending on the environment, it could still turn out that the wider horn suit one better.
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Old 17th July 2019, 10:49 AM   #1363
Ro808 is offline Ro808  Netherlands
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China...
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File Type: jpg DCX50 in 2-Way + Nexo 15 Woofer_pub.jpg (85.6 KB, 337 views)

Last edited by Ro808; 17th July 2019 at 10:57 AM.
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Old 17th July 2019, 11:10 AM   #1364
Ro808 is offline Ro808  Netherlands
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Quote:
Originally Posted by 4real View Post
How fair is it to compare these horns with vastly differing coverage?
It's not fair


Crude 400Hz conical of decent size:
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Old 17th July 2019, 12:13 PM   #1365
peterbrorsson is offline peterbrorsson  Sweden
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Quote:
Originally Posted by phase_accurate View Post
The HF204 is basically a HF144 with an adaptor. If you don't need a 2" you can as well use a HF144.
The B&C prototype elliptical horn shown in the B&C coax thread would probably be nice for the HF1440 as well. But I guess if there is no need to cross below, say 700 Hz, an LTH142 would probably also be nice.

Regards

Charles
I have a Selenium 4750 90x40 2 inch horn so it suits me. However the build quality of the horn is atrocious. Looks like a child joined the horn with the throat. Package was marked "Proudly made by Harmon/JBL"

For the moment I'm an outcast, I have put Visaton FRS 5X in them)
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Old 17th July 2019, 01:17 PM   #1366
Ro808 is offline Ro808  Netherlands
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The HM4750-SLF is bi-radial horn with slot.


The HL4750SLF is basically a slightly modified/upgraded JBL 2386.

If you can live with a slightly higher cut-off and get a wider dispersion as a bonus, this truncated clone is a better deal:

Last edited by Ro808; 17th July 2019 at 01:34 PM.
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Old 17th July 2019, 01:43 PM   #1367
peterbrorsson is offline peterbrorsson  Sweden
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Quote:
Originally Posted by Ro808 View Post
The 4750 is basically a slightly modified/upgraded JBL 2384, except for build quality/durability.
It's also very expensive.

If you can live with a higher cut-off and get wider dispersion as a bonus, this truncated clone is a much better deal:
??

This is the one I have:

JBL Selenium HM4750-SLF 2" Throat Bolt On Large Fiberglass Bi Radial Horn 90x40 | eBay
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Old 17th July 2019, 01:58 PM   #1368
Ro808 is offline Ro808  Netherlands
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Both:
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File Type: jpg HM4750-SLF_SpecSheet.jpg (512.4 KB, 246 views)
File Type: jpg selenium_hl4750_slf.jpg (517.7 KB, 78 views)
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Old 17th July 2019, 02:41 PM   #1369
Ro808 is offline Ro808  Netherlands
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2386, check the throat.

Tip: compare it to the K402 throat.
It's the onset of...
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File Type: jpg JBL2386.jpg (174.6 KB, 70 views)

Last edited by Ro808; 17th July 2019 at 02:45 PM.
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Old 17th July 2019, 04:44 PM   #1370
4real is offline 4real  Netherlands
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I'm still intrigued by the Reflector design. Would be cool to make a low budget version of it. Of course you could buy all the same components for much less than the asking price, but I'm thinking of something even more budget friendly: XT1464 with HF146 as a basis. Now finding half decent budget 15" or 18" woofers is tricky. The best bang for buck I could find was Oberton 18B450. They are €165,- a pop. You'd then need just under € 1000,- for only the drivers of one side.
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Last edited by 4real; 17th July 2019 at 05:00 PM.
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